PT-2024-11481 · Linux+3 · Linux Kernel+3

Published 2021-11-11 · Updated 2024-08-19 · CVE-2021-47529

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A memory leak issue has been identified in the Linux kernel's iwlwifi module. This issue occurs when an error happens, such as an invalid TLV length or memory allocation failure, and the memory allocated in 'reduce power data' is not freed before returning, resulting in a memory leak.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Memory Leak

Weakness Enumeration

CWE-476

CWE-401

Related Identifiers

BDU:2025-04461

CVE-2021-47529

OPENSUSE-SU-2024_2189-1

SUSE-SU-2024:2008-1

SUSE-SU-2024:2011-1

SUSE-SU-2024:2019-1

SUSE-SU-2024:2189-1

SUSE-SU-2024:2190-1

Affected Products

Astra Linux

Linux Kernel

Red Os

Suse

References · 1246

• 🔥 https://github.com/lanleft/CVE-2023-1829 · Exploit
• https://security-tracker.debian.org/tracker/CVE-2021-47529 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-47529 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2019-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2190-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-04461 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47529 · Vendor Advisory
• https://git.kernel.org/stable/c/4768935c25403ba96e7a745645df24a51a774b7e · Patch
• https://git.kernel.org/stable/c/a571bc28326d9f3e13f5f2d9cda2883e0631b0ce · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:2008-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-47529 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47529 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47529 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2189-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2011-1 · Vendor Advisory